import router, {asyncRoutes}  from './router'
import store from './store'
import { Message } from 'element-ui'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken } from '@/utils/auth' // get token from cookie
import getPageTitle from '@/utils/get-page-title'
import { getData } from '@/api/requestData'

NProgress.configure({ showSpinner: false }) // NProgress Configuration

const whiteList = ['/login', '/sso'] // no redirect whitelist

router.beforeEach(async(to, from, next) => {
  // start progress bar
  NProgress.start()

  // set page title
  document.title = getPageTitle(to.meta.title)
  // determine whether the user has logged in

  const hasToken = getToken()
  if (hasToken) {
    if (to.path === '/login' || to.path === '/sso') {
      // if is logged in, redirect to the home page
      next({ path: '/' })
      NProgress.done()
    } else {
      // 获取用户信息
      const hasGetUserInfo = store.getters.name
      if (hasGetUserInfo) {
        next()
      } else {
        try {
          /**
           * 页面渲染前, 获取用户信息, 全局使用
           */
          await getData('user/public/user/info').then(response => {
            if (response.code === 200) {
              store.dispatch('userState/state', { 'keyName': 'setName', 'value': response.data.realName })
              store.dispatch('userState/state', { 'keyName': 'setAvater', 'value': response.data.avatar })
              store.dispatch('userState/state', { 'keyName': 'setRoleId', 'value': response.data.roleId })
              store.dispatch('userState/state', { 'keyName': 'setRoleName','value': response.data.roleName })
              store.dispatch('userState/state', { 'keyName': 'setNodes','value': response.data.roleNodes })
              store.dispatch('userState/state', { 'keyName': 'setUserId','value': response.data.userId })
              store.dispatch('userState/state', { 'keyName': 'setForm','value': response.data.form })
            }
          })

          // 动态添加可访问路由表
          const accessRoutes = await store.dispatch('permission/generateRoutes')
          router.options.routes = accessRoutes
          router.addRoutes(accessRoutes)
          next({ ...to, replace: true })
        } catch (error) {
          // remove token and go to login page to re-login
          await store.dispatch('userState/state', { 'keyName': 'resetState', 'value': '' })
          Message.error(error || 'Has Error')
          next(`/login?redirect=${to.path}`)
          NProgress.done()
        }
      }
    }
  } else {
    /* has no token*/
    if (to.path === '/register') {
      next()
      return false
    }
    if (whiteList.indexOf(to.path) !== -1) {
      // in the free login whitelist, go directly
      next()
    } else {
      // other pages that do not have permission to access are redirected to the login page.
      next(`/login?redirect=${to.path}`)
      NProgress.done()
    }
  }
})

router.afterEach(() => {
  // finish progress bar
  NProgress.done()
})
